polycirc {pgirmess} | R Documentation |
Computes the polygon coordinates of a circle
polycirc(radius, pts = c(0, 0), nbr = 50)
radius |
the length of the radius. |
pts |
the coordinates of the center. |
nbr |
the number of segments required to draw the perimeter |
The matrix of coordinates can then be used with the function polygon
A matrix of coordinates.
Patrick Giraudoux <pgiraudo@univ-fcomte.fr>
plot(1:10,1:10,type="n",asp=1) polygon(polycirc(5),col="blue") polygon(polycirc(2,c(5,5)), col="red")